Adjust URLFetcher::Create API so that object is returned as scoped_ptr.

chrome/browser/autocomplete/zero_suggest_provider.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/autocomplete/zero_suggest_provider.h"
 
 #include "base/callback.h"
 #include "base/i18n/case_conversion.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/metrics/histogram.h"
@@ skipping 312 matching lines @@
     scoped_refptr<history::TopSites> ts =
         TopSitesFactory::GetForProfile(profile_);
     if (ts) {
       waiting_for_most_visited_urls_request_ = true;
       ts->GetMostVisitedURLs(
           base::Bind(&ZeroSuggestProvider::OnMostVisitedUrlsAvailable,
                      weak_ptr_factory_.GetWeakPtr()), false);
     }
   } else {
     const int kFetcherID = 1;
-    fetcher_.reset(
-        net::URLFetcher::Create(kFetcherID,
-            suggest_url,
-            net::URLFetcher::GET, this));
+    fetcher_ = net::URLFetcher::Create(kFetcherID, suggest_url,
+                                       net::URLFetcher::GET, this);
     fetcher_->SetRequestContext(profile_->GetRequestContext());
     fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SAVE_COOKIES);
     // Add Chrome experiment state to the request headers.
     net::HttpRequestHeaders headers;
     variations::VariationsHttpHeaderProvider::GetInstance()->AppendHeaders(
         fetcher_->GetOriginalURL(), profile_->IsOffTheRecord(), false,
         &headers);
     fetcher_->SetExtraRequestHeaders(headers.ToString());
     fetcher_->Start();
     LogOmniboxZeroSuggestRequest(ZERO_SUGGEST_REQUEST_SENT);
@@ skipping 136 matching lines @@
   if (!json_data.empty()) {
     scoped_ptr<base::Value> data(
         SearchSuggestionParser::DeserializeJsonData(json_data));
     if (data && ParseSuggestResults(
             *data, kDefaultZeroSuggestRelevance, false, &results_)) {
       ConvertResultsToAutocompleteMatches();
       results_from_cache_ = !matches_.empty();
     }
   }
 }